CN103464807B - A kind of method of combined type thread mill drilling and device - Google Patents
A kind of method of combined type thread mill drilling and device Download PDFInfo
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- CN103464807B CN103464807B CN201210183924.0A CN201210183924A CN103464807B CN 103464807 B CN103464807 B CN 103464807B CN 201210183924 A CN201210183924 A CN 201210183924A CN 103464807 B CN103464807 B CN 103464807B
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Abstract
A kind of method of combined type thread mill drilling, comprise the following steps: step a, process location motherboard (1) and positioning guiding plate (8) with CNC planer type milling machine: locate motherboard (1) and positioning guiding plate (8) is arc, and the extrados of the extrados of location motherboard (1), positioning guiding plate (8) is all identical with the curvature of the intrados of magneto outer rotor (2), the top of location motherboard (1) is provided with the seam (3) of the extrados protrusion along location motherboard (1); After adopting above-mentioned processing method, led to boring, tapping by the some pilot holes on the motherboard of location, machining accuracy is high, and is easy to operation, and process velocity is fast.
Description
Technical field
The present invention relates to method and the device of combined type thread mill drilling in a kind of wind-driven generator, in the directly driven wind-powered magneto outer rotor of especially a kind of large scale, the processing method of magnet steel threaded hole and device.
Background technology
In the directly driven wind-powered magneto of external-rotor-type, the intrados array of usual outer rotor has several magnet steel, and magnet steel along the circumferential circular array of outer rotor, and is the distribution of some files along the direction being parallel to outer roller axial.
Usually, bonding magnetic steel at the inner circumferential surface of outer rotor, but is adopted in such a way, due to service life of glue and reliability not good, the service life of device entirety and reliability are all difficult to ensure.In order to improve the reliability of connection, usually the mode that outer rotor and magnet steel are threaded connection is carried out fastening.Concrete, first on outer rotor, radially, axially need offer some groups of uniform screws, and some bolts are set on magnet steel, the position one_to_one corresponding of bolt on magnet steel after the position of screw and assembling, coordinate magnet steel to be threaded with outer rotor by above-mentioned bolt, screw and locate.
Although the better reliability of above-mentioned syndeton, but because numerous screws radially, is axially distributed on outer rotor, the difficulty of location, boring is large, and is all hole on the face of cylinder, and therefore each screw is accurately located along axial, the circumference of outer rotor, difficulty of processing is large.
Existing main scheme is manual location of ruling, and adopts T-square or single-frame rules by monolateral positioning marking wrench work, then pasting magnet steel.Such method inefficiency, labour intensity are large and installation accuracy is poor.
Refer to Fig. 1, Fig. 2, now also has the scheme that a kind of operating efficiency increases, first outer rotor is placed on turntable, again several radial drilling machines are set in the periphery of outer rotor; radial drilling machine maintains static in the radial direction of outer rotor; drive outer rotor intermittent rotary to relevant position by turntable, then drive radial drilling machine radially-inwardly to process corresponding screw along outer rotor.Adopt such frock, though improve to some extent in working (machining) efficiency, labour intensity etc., but because radial drilling machine need be arranged on the outer radial periphery of outer rotor, not only take up room large, processing for large diameter outer rotor is particularly difficult, in addition, also there is the defect that number of devices is many, structure is numerous and jumbled, with high costs.
Summary of the invention
The technical problem that the present invention solves is the above-mentioned deficiency overcoming prior art, provide a kind of applied widely, structure simply for auxiliary positioning processing magnet steel the method for combined type thread mill drilling and the device that close screw.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A method for combined type thread mill drilling, comprises the following steps:
Step a, process location motherboard and positioning guiding plate with CNC planer type milling machine:
Location motherboard and positioning guiding plate are arc, and the extrados of the extrados of location motherboard, positioning guiding plate is all identical with the curvature of the intrados of magneto outer rotor, and the top of location motherboard is provided with the seam protruded along the extrados of locating motherboard; Described location motherboard is longitudinally arranged with at least two pilot holes, the position of pilot hole and the lengthwise position one_to_one corresponding of at least two magnet steel threaded holes of the anti-drive end of contiguous magneto outer rotor on the motherboard of described location, each pilot hole all radially runs through location motherboard;
Described positioning guiding plate is longitudinally arranged with several pilot holes, the position of pilot hole and the position one_to_one corresponding of longitudinal all the other the magnet steel threaded holes upper of magneto outer rotor on described positioning guiding plate;
The upper end of positioning guiding plate is fixedly installed connector, described connector has at least two holes that are located by connecting, described in be located by connecting the position in hole and the lengthwise position one_to_one corresponding of at least two pilot holes of motherboard lower end, location;
Step b, first location motherboard is arranged on the anti-drive end of magneto outer rotor:
The location extrados of motherboard and the intrados of magneto outer rotor fit tightly, the location seam of motherboard and the anti-drive end end face of magneto outer rotor are fitted, and make the position one_to_one corresponding of at least two magnet steel threaded holes in a file of the anti-drive end of the position of pilot hole on the motherboard of location and contiguous magneto outer rotor;
Step c, the circumference of magneto outer rotor install several location motherboard, the columns of the pilot hole on each location motherboard is identical, be separated with magnet steel threaded hole between adjacent two location motherboards, between described adjacent two location motherboards, the columns of the magnet steel threaded hole at interval is identical with the columns of pilot hole on the motherboard of location;
Steps d, positioning guiding plate is arranged on the motherboard of location:
The extrados of positioning guiding plate and the intrados of magneto outer rotor fit tightly, the pilot hole be located by connecting on hole and location motherboard on pin joint connector, makes pilot hole and the position one_to_one corresponding being positioned at all the other the magnet steel threaded holes in magneto outer rotor one file;
Step e, boring, tapping:
By being arranged at the rotary rig of magneto outer rotor central authorities, the magnet steel threaded hole corresponding to each pilot hole being holed, then carries out manual tapping;
Step f, described in step c adjacent two location motherboards between interval magnet steel threaded hole places install location motherboard;
Step g, repetition steps d and step e, complete the processing of whole magnet steel threaded hole on magneto outer rotor.
After adopting above-mentioned processing method, by the some pilot holes on the motherboard of location to boring, tapping is led, machining accuracy is high, and be easy to operation, process velocity is fast, and combined with positioning guiding plate by location motherboard, utilize location motherboard after the anti-drive end side of magneto outer rotor processes at least two starter hole for positioning guiding plate location, the auxiliary positioning of some magnet steel threaded holes longitudinally arranged below is completed by positioning guiding plate, hole one by one again, tapping, the structure of location motherboard is simplified more, processing unit (plant) overall dimensions is less, be easy to storage, transport, not only be easy to processing, and saving cost, reduce the gross weight of processing apparatus.
Separately, to be holed one by one, tapping by the rotary rig being positioned over outer rotor center to each magnet steel threaded hole, process equipment size is little, cost is low, is particularly useful for the magnet steel threaded hole processing of major diameter outer rotor;
Utilize anti-drive end end face that plane precision on magneto outer rotor is high as axial location datum level, magnet steel threaded hole precision is vertically accurate, ensures that magnet steel completes assembling smoothly;
Closely connected by the inwall of extrados and the magneto outer rotor of locating motherboard, location motherboard stability better, and reduces the error that magnet steel threaded hole adds man-hour.
It should be noted that:
The direction of magneto outer rotor axis is parallel to after above-mentioned " longitudinal direction " refers to assembling;
Above-mentioned " circumference " refers to the circumferencial direction of magneto outer rotor anti-drive end end face.
Preferably, before described step e, carry out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
De1, a location survey block is respectively set on two adjacent location motherboards, two location survey blocks locate two row pilot hole pin joints on motherboard, adjacent respectively with adjacent two, the opposite sides of two location survey blocks is provided with datum plane, and the size of the angle between the sagittal plane of a row pilot hole of each datum plane and this location survey block of pin joint equals adjacent two half of locating the central angle size between two row pilot holes on motherboard, adjacent;
De2, measure the spacing of two datum planes, and the position of two adjacent location motherboards is finely tuned.
Adopt said method to the string between adjacent two location motherboards apart from measuring, not only when measuring, two datum planes are parallel to each other, slide calliper rule isoline distance measuring tool can be directly utilized to measure, to measure the air line distance of two planes, calculate on adjacent two location motherboards, the central angle of two adjacent row pilot holes, measure easy to operate, precisely, through measuring, after fine setting, circumferential position accuracy often between adjacent two location motherboards is higher, location motherboard position error when mounted can be reduced, thus improve the processing of magneto outer rotor upper magnetic steel threaded hole, positioning precision.
Preferably, described each location motherboard is provided with at least two row pilot holes, the radial angle of two row pilot holes adjacent on the motherboard of location is equal with the radial angle of the magnet steel threaded hole of two files adjacent on magneto outer rotor.
Adopt such method, each location motherboard all can realize the processing of at least two row magnet steel threaded holes, and working (machining) efficiency is higher.
Preferably, described step f specifically comprises the following steps:
F1, by described in step c adjacent two location motherboards pull down;
At least one row pilot hole of the location motherboard that f2, step f1 pull down with the magnet steel threaded hole processed for origin reference location, adjacent two the magnet steel threaded hole column alignments of locating interval between motherboard described in location all the other each row pilot holes of motherboard and step c.
Because the radial angle of two row pilot holes adjacent on the motherboard of location is equal with the radial angle of the magnet steel threaded hole of two files adjacent on magneto outer rotor, therefore, after being located by the wherein row pilot hole on the motherboard of location and the magnet steel threaded hole processed, the position of the still unprocessed magnet steel threaded hole of another row on all the other adjacent pilot hole row i.e. corresponding magneto outer rotor on the motherboard of location, location conveniently, accurate.
Preferably, in described step e, adopt screw tap to carry out tapping, the head of described screw tap is provided with lead, described lead and pilot hole matched in clearance.Be different from prior art, the mode of chip removal wedge-shaped slot is set at the head of screw tap, the lead suitable with the internal diameter of pilot hole is set at the head of screw tap, makes screw tap axis consistent with the axis of magnet steel threaded hole, thus ensure that the radial machining accuracy of magnet steel threaded hole.
Preferably, in step b, in step c and step e, binder is provided with between the extrados of described positioning guiding plate and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, the extrados compact siro spinning technology of described first clamping part and magneto outer rotor, described second clamping part is arranged at the intrados side of positioning guiding plate, described second clamping part has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt, after fitting in the upper surface of seam and magneto outer rotor, positioning guiding plate and magneto outer rotor are exerted pressure fastening by adjustment hold-down bolt.
Exert pressure fastening by binder to magneto outer rotor and positioning guiding plate, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
A kind of device of combined type thread mill drilling, comprise location motherboard, described location motherboard is arc, the extrados of location motherboard is identical with the curvature of the intrados of magneto outer rotor, described location motherboard is longitudinally arranged with several pilot holes, each pilot hole all radially runs through location motherboard, and the position of pilot hole is corresponding with the lengthwise position of the magnet steel threaded hole on magneto outer rotor.Such processing unit (plant) auxiliary positioning is adopted to process magnet steel closing screw, because the extrados of locating motherboard is identical with the curvature of the intrados of magneto outer rotor, after assembling, location motherboard fits in the inwall of magneto outer rotor, positioning stablity, and by several pilot holes that location motherboard longitudinally arranges, holing, tapping time lead, ensure that magnet steel threaded hole radially, axial machining accuracy.
Preferably, the top of described location motherboard is provided with the seam protruded along extrados.Because the anti-drive end end face flatness precision after processing of magneto outer rotor is high, by fitting tightly along the seam of extrados protrusion and the anti-drive end end face of magneto outer rotor of locating motherboard during assembling, can ensure that location motherboard has excellent assembly precision.
Preferably, on the motherboard of described location, the quantity of pilot hole is at least two, the lengthwise position one_to_one corresponding of at least two magnet steel threaded holes of the pilot hole on the motherboard of described location and contiguous magneto outer rotor anti-drive end;
Also comprise positioning guiding plate, described positioning guiding plate is arc, and the extrados of positioning guiding plate is identical with the curvature of the intrados of magneto outer rotor; Described positioning guiding plate is longitudinally arranged with several pilot holes, the lengthwise position one_to_one corresponding of all the other the magnet steel threaded holes on described positioning guiding plate in the position of pilot hole and magneto outer rotor one file;
The upper end of positioning guiding plate is fixedly installed connector, positioning guiding plate is located motherboard by connector and is connected, the outside of described connector is identical with the intrados curvature of location motherboard, described connector has at least two holes that are located by connecting, described in be located by connecting the position in hole and the lengthwise position one_to_one corresponding of at least two pilot holes of motherboard lower end, location.
Combined with the positioning guiding plate of strip by flat location motherboard, utilize location motherboard after the anti-drive end side of magneto outer rotor processes at least two starter hole for positioning guiding plate location, the auxiliary positioning of some magnet steel threaded holes longitudinally arranged below is completed by positioning guiding plate, carry out one by one again holing, tapping, the structure of location motherboard is simplified more, not only be easy to processing, and save the gross weight of cost, reduction processing apparatus.
Preferably, binder is provided with between the extrados of described arc and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, the extrados compact siro spinning technology of described first clamping part and magneto outer rotor, described second clamping part is arranged at the intrados side of arc, described second clamping part has been disposed radially adjustment screw, and regulate in screw and be provided with hold-down bolt, described hold-down bolt is relative to the second clamping part moving radially along magneto outer rotor.Exert pressure fastening by binder to magneto outer rotor and positioning guiding plate, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
Compared with prior art, the invention has the beneficial effects as follows:
1, led to boring, tapping by the some pilot holes on location motherboard and positioning guiding plate, machining accuracy is high, and is easy to operation, and process velocity is fast;
2, by the rotary rig being positioned over outer rotor center, each magnet steel threaded hole is holed one by one, tapping, process equipment size is little, cost is low, be particularly useful for major diameter outer rotor magnet steel threaded hole processing;
3, utilize anti-drive end end face that plane precision on magneto outer rotor is high as axial location datum level, magnet steel threaded hole precision is vertically accurate, ensure that magnet steel completes assembling smoothly, and it is closely connected by the inwall of the extrados and magneto outer rotor of locating motherboard, location motherboard stability is better, and reduces the error that magnet steel threaded hole adds man-hour.
Accompanying drawing explanation
Fig. 1 is the main schematic diagram of directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
Fig. 2 is the top view of directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
Fig. 3 is the arrangement schematic diagram of directly driven wind-powered magneto outer rotor upper magnetic steel threaded hole;
Fig. 4 is the schematic diagram in the present invention's directly driven wind-powered magneto outer rotor upper magnetic steel threaded hole processing method after alinco assembled;
Fig. 5 is the structural representation of locating motherboard in the present invention;
Fig. 6 is the front view of locating motherboard in the present invention;
Fig. 7 is the side view of locating motherboard in the present invention;
Fig. 8 is the machining sketch chart of Combined magneto generator outer rotor magnet steel threaded hole in the present invention;
Fig. 9 is the close-up schematic view of part A in Fig. 8;
Figure 10 is the schematic diagram of a kind of embodiment of processing of Combined magneto generator outer rotor magnet steel threaded hole in the present invention;
Figure 11 is the partial top view of Figure 10;
Figure 12 is the schematic diagram being positioned measurement in the present invention by location survey block;
Figure 13 is the close-up schematic view of part A in Figure 12;
Figure 14 is the schematic diagram that in the present invention, step e locates motherboard running fix path;
Figure 15 is the next view of Figure 14;
Figure 16 is the next view of Figure 15;
Figure 17 is the next view of Figure 16;
Figure 18 is the structural representation of existing screw tap;
Figure 19 is the structural representation of plug tap of the present invention;
Figure 20 is the processing mode schematic diagram of rotary rig;
Figure 21 is the structural representation of positioning guiding plate in the present invention.
Reference numeral is as follows: motherboard-1, location; Magneto outer rotor-2; Anti-drive end-the 2a of magneto outer rotor; Drive end-the 2b of magneto outer rotor; Magnet steel threaded hole-2c; Seam-3; Pilot hole-4; Rotary rig-5; Binder-6; First clamping part-6a; Second clamping part-6b; Hold-down bolt-6d; Screw tap-7; Lead-7a; Positioning guiding plate-8; Connector-9; Be located by connecting hole-9a; Magnet steel-10; Location survey block-11; Datum plane--11a; Angle-α between the sagittal plane of one row pilot hole of datum plane and this location survey block of pin joint; Adjacent two central angle-β located between two row pilot holes on motherboards, adjacent.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiments of the present invention are not limited to following examples, and the various changes made under the prerequisite not departing from present inventive concept all belong within protection scope of the present invention.
Embodiment 1
Refer to Fig. 3 to Figure 21, a kind of method of combined type thread mill drilling, comprises the following steps:
Step a, process location motherboard 1 and positioning guiding plate 8 with CNC planer type milling machine:
Location motherboard 1 and positioning guiding plate 8 are arc, and the extrados of the extrados of location motherboard 1, positioning guiding plate 8 is all identical with the curvature of the intrados of magneto outer rotor 2.Curvature is herein identical, be the extrados of specific bit motherboard 1, positioning guiding plate 8 extrados identical in the radius of turn corresponding with the intrados of magneto outer rotor 2, can fit tightly after assembling.
Due to locate the extrados of motherboard 1, positioning guiding plate 8 extrados all identical with the curvature of the intrados of magneto outer rotor 2, after assembling, location motherboard 1 and positioning guiding plate 8 all fit in the intrados of magneto outer rotor 2, positioning stablity, precisely.
The top of location motherboard 1 is provided with the seam 3 of the extrados protrusion along location motherboard 1, the bottom of seam 3 is plane, and fit with the anti-drive end 2a end face of magneto outer rotor after mounting, to position longitudinal starting altitude of location motherboard 1, because the anti-drive end 2a end face of magneto outer rotor is adding man-hour, flatness precision is high, utilize the seam 3 of the extrados protrusion along location motherboard 1, fit tightly with the anti-drive end 2a end face of magneto outer rotor, can ensure that location motherboard 1 has excellent assembly precision.
Location motherboard 1 is longitudinally arranged with two pilot holes 4, on the motherboard 1 of location, the position of pilot hole 4 is corresponding with the lengthwise position of two magnet steel threaded hole 2c of the anti-drive end 2a of contiguous magneto outer rotor, and each pilot hole 4 all radially runs through location motherboard 1; Namely two pilot holes 4 are equal with the distance of the anti-drive end 2a end face of magneto outer rotor with fore-and-aft distance respectively with two magnet steel threaded hole 2c of seam 3 lower surface, by the pilot hole 4 on above-mentioned location motherboard 1, can be used as the processing of two the magnet steel threaded holes two being adjacent to the anti-drive end 2a of magneto outer rotor, and play spot hole as the location that following process, especially positioning guiding plate 8 are installed.
After longitudinally orienting the position of two magnet steel threaded hole 2c by the pilot hole 4 of locating motherboard 1, using above-mentioned two pilot holes 4 as the benchmark of follow-up location, guiding, and be connected with positioning guiding plate 8.
Location motherboard 1 is as follows with the connected mode of positioning guiding plate 8: the upper end of positioning guiding plate 8 is fixedly installed connector 9, connector 9 there are two hole 9a that are located by connecting, be located by connecting the position of hole 9a and the lengthwise position one_to_one corresponding of two pilot holes 4 on the motherboard 1 of location, hole 9a and pilot hole 4 will be located by connecting one by one after pin joint, realize two-point defined line location longitudinally, to carry out guide-localization to the circumferential position of positioning guiding plate and lengthwise position.
Positioning guiding plate 8 is longitudinally arranged with several pilot holes 4, after positioning guiding plate 8 is in place, the position of pilot hole 4 and the lengthwise position one_to_one corresponding of longitudinal upper all the other the magnet steel threaded holes 2c of magneto outer rotor 2 on positioning guiding plate 8, with in subsequent step, complete guiding and the processing of all the other magnet steel threaded holes 2c in file.
Step b, first location motherboard 1 is arranged on the anti-drive end 2a of magneto outer rotor:
The longitudinal line of longitudinal line of pilot hole 4 each on first location motherboard 1 with arbitrary row magnet steel threaded hole 2c of magneto outer rotor 2 is alignd, and the intrados of the extrados of location motherboard 1 and magneto outer rotor 2 is fitted tightly, the seam 3 of location motherboard 1 is fitted with the anti-drive end 2a end face of magneto outer rotor;
Concrete, first, the intrados of the extrados of location motherboard 1 and magneto outer rotor 2 is fitted tightly, the seam 3 of location motherboard 1 is fitted with the anti-drive end 2a end face of magneto outer rotor, again the position of two pilot holes 4 on the motherboard 1 of location is adjusted to the position one_to_one corresponding with two magnet steel threaded hole 2c in a file of the anti-drive end 2a of contiguous magneto outer rotor, guarantees to locate motherboard along the circumference of magneto outer rotor 2 and longitudinal accurately location.
Step c, the circumference of magneto outer rotor 2 install nine location motherboards 1, each location motherboard 1 all there are four row pilot holes 4, on each row, the quantity of pilot hole 4 is identical, be separated with magnet steel threaded hole 2c between adjacent two location motherboards 1, and between adjacent two location motherboards 1, the columns of the magnet steel threaded hole 2c at interval is identical with the columns of pilot hole 4 on the motherboard 1 of location.
After completing steps c assembles, the circumference of magneto outer rotor 2 uniform, the position of 80 row magnet steel threaded hole 2c to be processed, after location motherboard 1 being installed by step b, step c, there are 40 row magnet steel threaded hole 2c corresponding with the pilot hole 4 on the motherboard 1 of location, and every two groups adjacent, to having in four row magnet steel threaded hole 2c of pilot hole 4, be separated with all four row to be processed and four row magnet steel threaded holes row of location motherboard 1 are not installed.
Steps d, positioning guiding plate 8 is arranged on the motherboard 1 of location:
Positioning guiding plate 8 is by pilot hole 4 pin joint on the location motherboard 1 installed in the connector of its upper end 9 and step b and step c, complete the assembling of positioning guiding plate 8, and the intrados of the extrados of positioning guiding plate 8 and magneto outer rotor 2 is fitted tightly, specific as follows:
First the intrados of the extrados of positioning guiding plate 8 and magneto outer rotor 2 is fitted tightly, connector 9 is fixedly connected on positioning guiding plate 8, pilot hole 4 pin joint be one by one located by connecting on hole 9a and location motherboard 1, makes the position one_to_one corresponding of all the other the magnet steel threaded holes 2c in pilot hole 4 and magneto outer rotor 2 one file;
Mutually combined with positioning guiding plate 8 by location motherboard 1, realize the whole magnet steel threaded hole 2c positions one_to_one corresponding in a file on magneto outer rotor 2.
Step e, boring, tapping:
By being arranged at the rotary rig 5 of magneto outer rotor 2 central authorities, the magnet steel threaded hole 2c corresponding to each pilot hole 4 being holed, then carries out manual tapping.
Rotary rig 5 is arranged at the central authorities of magneto outer rotor 2, namely the rotating shaft of rotary rig 5 and magneto outer rotor 2 are coaxially arranged, and when the bit of rotary rig 5, keep the radial direction of drill bit and magneto outer rotor 2 in the same way.Before magnet steel threaded hole 2c is holed, the drill bit of rotary rig 5 is adjusted to the longitudinal direction corresponding with pilot hole 4 and circumferential position.When creeping into, drill bit, at the auxiliary lower accurate guide-localization of pilot hole 4, improves borehole accuracy and completes boring.
After completing boring, in order to avoid screw tap 7 breaks in magnet steel threaded hole 2c, complete tapping in the mode of hand tapping.
Step f, described in step c adjacent two location motherboards 1 between interval magnet steel threaded hole 2c places install locate motherboard 1, after processing magnet steel threaded hole 2c by previous step, at the circumference of magneto outer rotor 2, the place to be processed of magnet steel threaded hole 2c, location motherboard 1 is installed, to realize guiding when holing.
Step g, repetition steps d and step e, hole to the magnet steel threaded hole 2c corresponding to each pilot hole 4, then carry out manual tapping, complete the processing of whole magnet steel threaded hole 2c on magneto outer rotor 2.
After completing above-mentioned steps, magnet steel 10 can be matched with magnet steel threaded hole 2c by screw, be fixed on magneto outer rotor 2 inner surface.
In the present embodiment, circumferentially be distributed in magneto outer rotor 2 inwall, the magnet steel threaded hole 2c intending processing amounts to 80 row, each location motherboard 1 comprises four row pilot holes 4, therefore, when step c location motherboard 1 has assembled, amount to 10 location motherboards 1, corresponding 40 row magnet steel threaded hole 2c, simultaneously, remain 40 row magnet steel are installed conjunction screw thread 2c hole 10 location motherboards 1 by step e, and positioning guiding plate 8 is corresponding, and guide, complete processing, after all magnet steel threaded hole 2c machine, magnet steel 8 by bolt and magnet steel threaded hole 2c fastening.
In all the other embodiments, the columns of the pilot hole 4 on each location motherboard 1, according to be circumferentially distributed in magneto outer rotor 2 inwall, the difference of magnet steel threaded hole 2c columns of intending processing, can be two row, three row, five row or more, as long as after assembling some location motherboard 1, nonmagnetic steel threaded hole 2c row do not match with pilot hole 4, just repeat no more at this.
Adopt the processing method of the present embodiment, by the some pilot holes 4 on the motherboard 1 of location to boring, tapping is led, machining accuracy is high, and be easy to operation, process velocity is fast, and combined with positioning guiding plate 8 by location motherboard 1, first utilize location motherboard 1 after the anti-drive end 2a side of magneto outer rotor processes at least two starter hole of locating for positioning guiding plate 8, the auxiliary positioning of some magnet steel threaded hole 2c longitudinally arranged below is completed by positioning guiding plate 8, hole one by one again, tapping, the structure of location motherboard 1 is simplified more, processing unit (plant) overall dimensions is less, be easy to storage, transport, not only be easy to processing, and saving cost, reduce the gross weight of processing apparatus.
Separately, to be holed one by one, tapping by the rotary rig 5 being positioned over magneto outer rotor 2 center to each magnet steel threaded hole 2c, process equipment size is little, cost is low, and the magnet steel threaded hole 2c being particularly useful for major diameter outer rotor processes;
Utilize anti-drive end end face that plane precision on magneto outer rotor 2 is high as axial location datum level, magnet steel threaded hole 2c precision is vertically accurate, ensures that magnet steel completes assembling smoothly;
Closely connected by the inwall of extrados and the magneto outer rotor 2 of locating motherboard 1, location motherboard 1 stability better, and can reduce the error that magnet steel threaded hole 2c adds man-hour.
In all the other embodiments, the quantity of pilot hole 4 that location motherboard 1 is longitudinally arranged with, can be 3 or more, can be used as the initial locating hole of positioning guiding plate 8 and longitudinally position the height of positioning guiding plate 8.
Embodiment 2
Refer to Figure 12 and Figure 13, the method for the present embodiment combined type thread mill drilling, before described step e, carries out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
De1, a location survey block 11 is respectively set on two adjacent location motherboards 1, two location survey blocks 11 locate two row pilot hole 4 pin joints on motherboard 1, adjacent respectively with adjacent two, the opposite sides of two location survey blocks 11 is provided with datum plane 11a, and the size of the angle α between the sagittal plane of a row pilot hole 4 of each datum plane 11a and this location survey block 11 of pin joint equals adjacent two half of locating the central angle β size between two row pilot holes 4 on motherboard 1, adjacent;
In the present embodiment, central angles on adjacent two location motherboards 1 that step c installs, between adjacent two row pilot holes 4, contain two adjacent row pilot holes 4 and that not yet install location motherboard 1, four row magnet steel threaded hole 2c the arrange central angle angle summation of between two adjacent row pilot holes 4 four.
In the present embodiment, the size of the central angle corresponding to six row magnet steel threaded hole 2c be a row pilot hole 4 of 360 ° of ÷ 80 × 5=22.5 °, datum plane 11a and this location survey block 11 of pin joint sagittal plane between angle α be 11.25 °.By calculating or measuring on drawing, obtain the theoretical line distance of the datum plane 11a between adjacent two location motherboards 1.
De2, measure the spacing of two datum plane 11a, and locate compared with the theoretical line distance of the datum plane 11a between motherboard 1 with adjacent two that calculate or record on drawing, thus the position of two adjacent location motherboards 1 is finely tuned.
All the other steps refer to embodiment 1.
Embodiment 3
Refer to 14 to Figure 17, in the method for the present embodiment combined type thread mill drilling, described step f specifically comprises the following steps:
F1, by described in step c adjacent two location motherboards 1 pull down;
F2, as shown in figure 14, the one row pilot hole 4 at the edge of the location motherboard 1 that step f1 pulls down circumferentially mobile 13.5 °, and with the magnet steel threaded hole 2c processed for benchmark is located by pin, as shown in figure 15, its excess-three row pilot hole 4 on this location motherboard 1 to be located in the four row magnet steel threaded hole 2c at interval between motherboard 1 with adjacent two described in step c, is alignd near three row magnet steel threaded hole 2c of this location motherboard 1.
Adopt said method that another location motherboard 1 is installed, as shown in figure 16, by another location motherboard 1 circumferentially mobile 4.5 °, as shown in figure 17, the magnet steel threaded hole 2c making each to be processed all has pilot hole 4 corresponding.
All the other steps refer to embodiment 2.
In all the other embodiments, when the columns of circumferentially movement after location motherboard 1 is pulled down can be selected arbitrarily under the prerequisite not exceeding hole number of columns on the motherboard 1 of location, arrange as long as it has initial locating hole and may correspond to magnet steel threaded hole 2c to be processed, just repeat no more at this.
Embodiment 4
Refer to Figure 19, in the method for the present embodiment combined type thread mill drilling, step e adopts screw tap 7 to carry out tapping.
Be different from the traditional screw tap 7 shown in Figure 12, the head of the present embodiment plug tap 7 is provided with lead 7a, lead 7a and pilot hole 4 matched in clearance.The lead 7a suitable with the internal diameter of pilot hole 4 is set by the head at screw tap 7, makes screw tap 7 axis consistent with the axis of magnet steel threaded hole 2c, thus ensure that the radial machining accuracy of magnet steel threaded hole 2c.
All the other steps refer to embodiment 1.
Embodiment 5
Refer to Fig. 8 to Figure 11, in the method for the present embodiment combined type thread mill drilling, in step b, in step c and step e, , binder 6 is provided with between the extrados of positioning guiding plate 8 and magneto outer rotor 2, binder 6 comprises the first clamping part 6a and the second clamping part 6b, the extrados compact siro spinning technology of the first clamping part 6a and magneto outer rotor 2, second clamping part 6b is arranged at the intrados side of positioning guiding plate 8, second clamping part 6b has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt 6d, after fitting in seam 3 and the upper surface of magneto outer rotor 2, positioning guiding plate 8 and magneto outer rotor 2 are exerted pressure fastening by adjustment hold-down bolt 6d.Exert pressure fastening by binder 6 pairs of magneto outer rotors 2 and positioning guiding plate 8, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
All the other steps refer to embodiment 4.
Embodiment 6
Refer to Fig. 4 to Figure 11, a kind of device of combined type thread mill drilling, comprise location motherboard 1, location motherboard 1 is arc, the extrados of location motherboard 1 is identical with the curvature of the intrados of magneto outer rotor 2, location motherboard 1 is longitudinally arranged with several pilot holes 4, and each pilot hole 4 all radially runs through location motherboard 1, and the position of pilot hole 4 is corresponding with the lengthwise position of the magnet steel threaded hole 2c on magneto outer rotor 2; Such processing unit (plant) auxiliary positioning is adopted to process magnet steel threaded hole 2c, because the extrados of locating motherboard 1 is identical with the curvature of the intrados of magneto outer rotor 2, after assembling, location motherboard 1 fits in the intrados of magneto outer rotor 2, positioning stablity, and by several pilot holes 4 that location motherboard 1 longitudinally arranges, holing, tapping time lead, ensure that magnet steel threaded hole 2c radially, axial machining accuracy.
The method utilizing the device of the present embodiment combined type thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 1.
Embodiment 7
Refer to Fig. 4 to Figure 11, in the device of the present embodiment combined type thread mill drilling, the top of location motherboard 1 is provided with the seam 3 protruded along extrados; Because the anti-drive end 2a end face flatness precision after processing of magneto outer rotor is high, seam 3 by protruding along the extrados of location motherboard 1 during assembling fits tightly with the anti-drive end 2a end face of magneto outer rotor, can ensure that location motherboard 1 has excellent assembly precision.
All the other structures refer to embodiment 6.
The method utilizing the device of the present embodiment combined type thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 1.
Embodiment 8
Refer to Fig. 4 to Figure 21, in the device of the present embodiment combined type thread mill drilling, on the motherboard 1 of location, the quantity of pilot hole 4 is two, the lengthwise position one_to_one corresponding of two magnet steel threaded hole 2c of the pilot hole 4 on the motherboard 1 of location and contiguous magneto outer rotor 2 anti-drive end; Also comprise positioning guiding plate 8, positioning guiding plate 8 is arc, and the extrados of positioning guiding plate 8 is identical with the curvature of the intrados of magneto outer rotor 2; Positioning guiding plate 8 is longitudinally arranged with several pilot holes 4, on positioning guiding plate 8 position of pilot hole 4 and magneto outer rotor 2 longitudinally all the other magnet steel upper the lengthwise position one_to_one corresponding closing screw thread; The upper end of positioning guiding plate 8 is fixedly installed connector 9, positioning guiding plate 8 is located motherboard 1 by connector 9 and is connected, the outside of connector 9 is identical with the intrados curvature of location motherboard 1, connector 9 there are two hole 9a that are located by connecting, the position of the hole 9a that is located by connecting and the lengthwise position one_to_one corresponding of two pilot holes 4 of motherboard 1 lower end, location.
Combined with the positioning guiding plate 8 of strip by flat location motherboard 1, utilize location motherboard 1 after the anti-drive end 2a side of magneto outer rotor processes at least two starter hole of locating for positioning guiding plate 8, the auxiliary positioning of some magnet steel threaded hole 2c longitudinally arranged below is completed by positioning guiding plate 8, carry out one by one again holing, tapping, the structure of location motherboard 1 is simplified more, not only be easy to processing, and save the gross weight of cost, reduction processing apparatus.
In all the other embodiments, the quantity of pilot hole 4 be longitudinally arranged on the motherboard 1 of location can be three, or more, accordingly, the connector 9 being fixedly connected on positioning guiding plate 8 upper end is also provided with the hole 9a that is located by connecting of equal number, does not just repeat one by one at this.
All the other structures refer to embodiment 7.
The method utilizing the device of the present embodiment combined type thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 1.
By reference to the accompanying drawings embodiments of the invention are described in detail above; but the present invention is not limited to above-described embodiment; can also make various change in the ken that those of ordinary skill in the art possess, these changes all belong within protection scope of the present invention.
Claims (8)
1. a method for combined type thread mill drilling, is characterized in that, comprises the following steps:
step a, process location motherboard (1) and positioning guiding plate (8) with CNC planer type milling machine:
Location motherboard (1) and positioning guiding plate (8) are arc, and the extrados of the extrados of location motherboard (1), positioning guiding plate (8) is all identical with the curvature of the intrados of magneto outer rotor (2), the top of location motherboard (1) is provided with the seam (3) of the extrados protrusion along location motherboard (1); Described location motherboard (1) is longitudinally arranged with at least two pilot holes (4), the position of the upper pilot hole (4) in described location motherboard (1) and the lengthwise position one_to_one corresponding of at least two magnet steel threaded holes (2c) of the anti-drive end (2a) of contiguous magneto outer rotor, each pilot hole (4) all radially runs through location motherboard (1);
Described positioning guiding plate (8) is longitudinally arranged with several pilot holes (4), the position one_to_one corresponding of all the other magnet steel threaded holes (2c) in the position of the upper pilot hole (4) of described positioning guiding plate (8) and magneto outer rotor (2) longitudinal direction;
The upper end of positioning guiding plate (8) is fixedly installed connector (9), described connector (9) has at least two holes that are located by connecting (9a), described in be located by connecting the position in hole (9a) and the lengthwise position one_to_one corresponding of at least two pilot holes (4) of motherboard (1) lower end, location;
step b, first location motherboard (1) is arranged on the anti-drive end (2a) of magneto outer rotor:
The extrados of location motherboard (1) and the intrados of magneto outer rotor (2) fit tightly, the seam (3) of location motherboard (1) is fitted with anti-drive end (2a) end face of magneto outer rotor, makes the position one_to_one corresponding of at least two magnet steel threaded holes (2c) in the position of the upper pilot hole (4) of location motherboard (1) and a file of the anti-drive end (2a) of contiguous magneto outer rotor;
Step c, the circumference of magneto outer rotor (2) install several location motherboard (1), the columns of the pilot hole (4) on each location motherboard (1) is identical, be separated with magnet steel threaded hole (2c) between adjacent two location motherboard (1), between described adjacent two location motherboard (1), the columns of the magnet steel threaded hole (2c) at interval is identical with the columns of the upper pilot hole (4) in location motherboard (1);
steps d, positioning guiding plate (8) to be arranged on location motherboard (1) upper:
The extrados of positioning guiding plate (8) and the intrados of magneto outer rotor (2) fit tightly, the hole that is located by connecting (9a) on pin joint connector (9) and the pilot hole (4) of locating on motherboard (1), make the pilot hole (4) on positioning guiding plate (8) and the position one_to_one corresponding being positioned at all the other the magnet steel threaded holes (2c) in magneto outer rotor (2) file;
step e, boring, tapping:
By being arranged at the rotary rig (5) of magneto outer rotor (2) central authorities, the magnet steel threaded hole (2c) corresponding to each pilot hole (4) being holed, then carries out manual tapping;
step f,between adjacent two location motherboard (1) described in step c, location motherboard (1) is installed at magnet steel threaded hole (2c) place at interval;
step g,repeat steps d and step e, complete the processing of the upper whole magnet steel threaded hole (2c) of magneto outer rotor (2).
2. the method for combined type thread mill drilling according to claim 1, is characterized in that, before described step e, carries out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
De1, each a location survey block (11) is set two adjacent location motherboards (1) are upper, two location survey blocks (11) are located on motherboard (1) with adjacent two respectively, two adjacent row pilot hole (4) pin joints, the opposite sides of two location survey blocks (11) is provided with datum plane (11a), the size of the angle (α) between the sagittal plane of one row pilot hole (4) of each datum plane (11a) and this location survey block (11) of pin joint equals adjacent two and locates on motherboard (1), the half of central angle (β) size between two adjacent row pilot holes (4),
De2, measure the spacing of two datum planes (11a), and the position of two adjacent location motherboards (1) is finely tuned.
3. the method for combined type thread mill drilling according to claim 2, it is characterized in that: each described each location motherboard (1) is provided with at least two row pilot holes (4), the radial angle of the upper two adjacent row pilot holes (4) in location motherboard (1) is equal with the radial angle of the magnet steel threaded hole (2c) of upper adjacent two files of magneto outer rotor (2).
4. the processing method of combined type thread mill drilling according to claim 3, is characterized in that, described step f specifically comprises the following steps:
F1, by described in step c adjacent two location motherboard (1) pull down;
At least one row pilot hole (4) of the location motherboard (1) that f2, step f1 pull down with the magnet steel threaded hole (2c) processed for origin reference location, all the other each row pilot holes (4) of location motherboard (1) and adjacent two magnet steel threaded hole (2c) column alignments of locating interval between motherboard (1) described in step c.
5. the method for the combined type thread mill drilling according to claim arbitrary in Claims 1-4, it is characterized in that: in described step e, screw tap (7) is adopted to carry out tapping, the head of described screw tap (7) is provided with lead (7a), described lead (7a) and pilot hole (4) matched in clearance.
6. the method for the combined type thread mill drilling according to claim arbitrary in Claims 1-4, it is characterized in that: in step b, in step c and step e, binder (6) is provided with between described positioning guiding plate (8) and the extrados of magneto outer rotor (2), described binder (6) comprises the first clamping part (6a) and the second clamping part (6b), the extrados compact siro spinning technology of described first clamping part (6a) and magneto outer rotor (2), described second clamping part (6b) is arranged at the intrados side of positioning guiding plate (8), described second clamping part (6b) has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt (6d), after fitting in seam (3) and the upper surface of magneto outer rotor (2), positioning guiding plate (8) and magneto outer rotor (2) are exerted pressure fastening by adjustment hold-down bolt (6d).
7. the device of a combined type thread mill drilling, it is characterized in that: comprise location motherboard (1), described location motherboard (1) is arc, the extrados of location motherboard (1) is identical with the curvature of the intrados of magneto outer rotor (2), described location motherboard (1) is longitudinally arranged with several pilot holes (4), each pilot hole (4) all radially runs through location motherboard (1), and the position of pilot hole (4) is corresponding with the lengthwise position of the magnet steel threaded hole (2c) on magneto outer rotor (2); The top of described location motherboard (1) is provided with the seam (3) protruded along extrados;
The quantity of the upper pilot hole (4) in described location motherboard (1) is at least two, the lengthwise position one_to_one corresponding of at least two magnet steel threaded holes (2c) of the pilot hole (4) on described location motherboard (1) and contiguous magneto outer rotor anti-drive end (2a);
Also comprise positioning guiding plate (8), described positioning guiding plate (8) is arc, and the extrados of positioning guiding plate (8) is identical with the curvature of the intrados of magneto outer rotor (2); Described positioning guiding plate (8) is longitudinally arranged with several pilot holes (4), the lengthwise position one_to_one corresponding of all the other the magnet steel threaded holes (2c) in the position of the upper pilot hole (4) of described positioning guiding plate (8) and magneto outer rotor (2) file;
The upper end of positioning guiding plate (8) is fixedly installed connector (9), positioning guiding plate (8) is connected with location motherboard (1) by connector (9), the outside of described connector (9) is identical with the intrados curvature of location motherboard (1), described connector (9) has at least two holes that are located by connecting (9a), described in be located by connecting the position in hole (9a) and the lengthwise position one_to_one corresponding of at least two pilot holes (4) of motherboard (1) lower end, location.
8. the device of combined type thread mill drilling according to claim 7, it is characterized in that: between the extrados of described positioning guiding plate (8) and magneto outer rotor (2), be provided with binder (6), described binder (6) comprises the first clamping part (6a) and the second clamping part (6b), the extrados compact siro spinning technology of described first clamping part (6a) and magneto outer rotor (2), described second clamping part (6b) is arranged at the intrados side of arc, described second clamping part (6b) has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt (6d), described hold-down bolt (6d) is relative to the second clamping part (6b) moving radially along magneto outer rotor (2).
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| CN201210183924.0A CN103464807B (en) | 2012-06-06 | 2012-06-06 | A kind of method of combined type thread mill drilling and device |
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| CN201210183924.0A CN103464807B (en) | 2012-06-06 | 2012-06-06 | A kind of method of combined type thread mill drilling and device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6085808A (en) * | 1983-10-18 | 1985-05-15 | Toshiba Corp | Pin hole drilling device for turbine rotor wheel |
| CN201070687Y (en) * | 2007-06-25 | 2008-06-11 | 哈尔滨汽轮机厂有限责任公司 | Turbine rotor fork shaped blade root pin-and-hole split fork space spotting drill mould |
| CN101628371A (en) * | 2009-07-31 | 2010-01-20 | 天津重钢机械装备股份有限公司 | Method for processing large workpiece boring hole by using drilling machine |
| CN202180234U (en) * | 2011-05-11 | 2012-04-04 | 大连船舶重工集团装备制造有限公司 | Tap drilling template |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202639421U (en) * | 2012-06-06 | 2013-01-02 | 东方电气集团东方电机有限公司 | Combined threaded hole processing device |
-
2012
- 2012-06-06 CN CN201210183924.0A patent/CN103464807B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6085808A (en) * | 1983-10-18 | 1985-05-15 | Toshiba Corp | Pin hole drilling device for turbine rotor wheel |
| CN201070687Y (en) * | 2007-06-25 | 2008-06-11 | 哈尔滨汽轮机厂有限责任公司 | Turbine rotor fork shaped blade root pin-and-hole split fork space spotting drill mould |
| CN101628371A (en) * | 2009-07-31 | 2010-01-20 | 天津重钢机械装备股份有限公司 | Method for processing large workpiece boring hole by using drilling machine |
| CN202180234U (en) * | 2011-05-11 | 2012-04-04 | 大连船舶重工集团装备制造有限公司 | Tap drilling template |
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